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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.156 by root, Thu Nov 12 00:01:52 2009 UTC vs.
Revision 1.212 by root, Sun Apr 8 00:11:50 2012 UTC

…		…
15	#include <sys/stat.h>	15	#include <sys/stat.h>
16	#include <limits.h>	16	#include <limits.h>
17	#include <fcntl.h>	17	#include <fcntl.h>
18	#include <sched.h>	18	#include <sched.h>
19		19
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
		23
		24	#if __linux__
		25	# include <linux/fs.h>
		26	# ifdef FS_IOC_FIEMAP
		27	# include <linux/types.h>
		28	# include <linux/fiemap.h>
		29	# define HAVE_FIEMAP 1
		30	# endif
		31	#endif
		32
20	/* perl namespace pollution */	33	/* perl namespace pollution */
21	#undef VERSION	34	#undef VERSION
22
23	#ifdef _WIN32
24
25	# define EIO_STRUCT_DIRENT Direntry_t
26	# undef malloc
27	# undef free
28
29	// perl overrides all those nice win32 functions
30	# undef open
31	# undef read
32	# undef write
33	# undef send
34	# undef recv
35	# undef stat
36	# undef fstat
37	# define lstat stat
38	# undef truncate
39	# undef ftruncate
40	# undef open
41	# undef close
42	# undef unlink
43	# undef rmdir
44	# undef rename
45	# undef lseek
46
47	# define chown(a,b,c) (errno = ENOSYS, -1)
48	# define fchown(a,b,c) (errno = ENOSYS, -1)
49	# define fchmod(a,b) (errno = ENOSYS, -1)
50	# define symlink(a,b) (errno = ENOSYS, -1)
51	# define readlink(a,b,c) (errno = ENOSYS, -1)
52	# define mknod(a,b,c) (errno = ENOSYS, -1)
53	# define truncate(a,b) (errno = ENOSYS, -1)
54	# define ftruncate(fd,o) chsize ((fd), (o))
55	# define fsync(fd) _commit (fd)
56	# define opendir(fd) (errno = ENOSYS, 0)
57	# define readdir(fd) (errno = ENOSYS, -1)
58	# define closedir(fd) (errno = ENOSYS, -1)
59	# define mkdir(a,b) mkdir (a)
60
61	#else
62
63	# include <sys/time.h>
64	# include <sys/select.h>
65	# include <unistd.h>
66	# include <utime.h>
67	# include <signal.h>
68	# define EIO_STRUCT_DIRENT struct dirent
69
70	#endif
71		35
72	/* perl stupidly overrides readdir and maybe others */	36	/* perl stupidly overrides readdir and maybe others */
73	/* with thread-unsafe versions, imagine that :( */	37	/* with thread-unsafe versions, imagine that :( */
74	#undef readdir	38	#undef readdir
75	#undef opendir	39	#undef opendir
76	#undef closedir	40	#undef closedir
77		41
		42	#ifdef _WIN32
		43
		44	// perl overrides all those nice libc functions
		45
		46	#undef malloc
		47	#undef free
		48	#undef open
		49	#undef read
		50	#undef write
		51	#undef send
		52	#undef recv
		53	#undef stat
		54	#undef lstat
		55	#undef fstat
		56	#undef truncate
		57	#undef ftruncate
		58	#undef open
		59	#undef link
		60	#undef close
		61	#undef unlink
		62	#undef mkdir
		63	#undef rmdir
		64	#undef rename
		65	#undef lseek
		66	#undef opendir
		67	#undef readdir
		68	#undef closedir
		69	#undef chmod
		70	#undef fchmod
		71	#undef dup
		72	#undef dup2
		73	#undef abort
		74	#undef pipe
		75
		76	#define EIO_STRUCT_STAT struct _stati64
78	#define EIO_STRUCT_STAT Stat_t	77	#define EIO_STRUCT_STATI64
79		78
80	/* use NV for 32 bit perls as it allows larger offsets */
81	#if IVSIZE >= 8
82	# define VAL64 IV
83	# define SvVAL64 SvIV
84	# define newSVval64 newSViv
85	#else	79	#else
86	# define VAL64 NV	80
87	# define SvVAL64 SvNV	81	#include <sys/time.h>
88	# define newSVval64 newSVnv	82	#include <sys/select.h>
		83	#include <unistd.h>
		84	#include <utime.h>
		85	#include <signal.h>
		86
		87	#define EIO_STRUCT_STAT Stat_t
		88
89	#endif	89	#endif
90		90
91	/*****************************************************************************/	91	/*****************************************************************************/
92		92
93	#if __GNUC__ >= 3	93	#if __GNUC__ >= 3
…		…
103		103
104	typedef SV SV8; /* byte-sv, used for argument-checking */	104	typedef SV SV8; /* byte-sv, used for argument-checking */
105	typedef int aio_rfd; /* read file desriptor */	105	typedef int aio_rfd; /* read file desriptor */
106	typedef int aio_wfd; /* write file descriptor */	106	typedef int aio_wfd; /* write file descriptor */
107		107
108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
109		109
110	#define EIO_REQ_MEMBERS \	110	#define EIO_REQ_MEMBERS \
111	SV *callback; \	111	SV *callback; \
112	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
		113	SV *sv3, *sv4; \
113	STRLEN stroffset; \	114	STRLEN stroffset; \
114	SV *self;	115	SV *self;
115		116
116	#define EIO_NO_WRAPPERS 1	117	#define EIO_NO_WRAPPERS 1
117		118
		119	#include "libeio/config.h"
118	#include "libeio/eio.h"	120	#include "libeio/eio.h"
119
120	#ifndef POSIX_FADV_NORMAL
121	# define POSIX_FADV_NORMAL 0
122	# define NO_FADVISE 1
123	#endif
124
125	#ifndef POSIX_FADV_SEQUENTIAL
126	# define POSIX_FADV_SEQUENTIAL 0
127	#endif
128
129	#ifndef POSIX_FADV_RANDOM
130	# define POSIX_FADV_RANDOM 0
131	#endif
132
133	#ifndef POSIX_FADV_NOREUSE
134	# define POSIX_FADV_NOREUSE 0
135	#endif
136
137	#ifndef POSIX_FADV_WILLNEED
138	# define POSIX_FADV_WILLNEED 0
139	#endif
140
141	#ifndef POSIX_FADV_DONTNEED
142	# define POSIX_FADV_DONTNEED 0
143	#endif
144		121
145	static int req_invoke (eio_req *req);	122	static int req_invoke (eio_req *req);
146	#define EIO_FINISH(req) req_invoke (req)	123	#define EIO_FINISH(req) req_invoke (req)
147	static void req_destroy (eio_req *grp);	124	static void req_destroy (eio_req *grp);
148	#define EIO_DESTROY(req) req_destroy (req)	125	#define EIO_DESTROY(req) req_destroy (req)
149		126
		127	#include "libeio/eio.c"
		128
		129	#if !HAVE_POSIX_FADVISE
		130	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		131	#endif
		132
		133	#if !HAVE_POSIX_MADVISE
		134	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		135	#endif
		136
		137	#ifndef MAP_ANONYMOUS
		138	# ifdef MAP_ANON
		139	# define MAP_ANONYMOUS MAP_ANON
		140	# else
		141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		142	# endif
		143	#endif
		144
		145	/* defines all sorts of constants to 0 unless they are already defined */
		146	#include "def0.h"
		147
		148	#ifndef makedev
		149	# define makedev(maj,min) (((maj) << 8) | (min))
		150	#endif
		151	#ifndef major
		152	# define major(dev) ((dev) >> 8)
		153	#endif
		154	#ifndef minor
		155	# define minor(dev) ((dev) & 0xff)
		156	#endif
		157
		158	#ifndef PAGESIZE
		159	# define PAGESIZE sysconf (_SC_PAGESIZE)
		160	#endif
		161
		162	/*****************************************************************************/
		163
		164	static void
		165	fiemap (eio_req *req)
		166	{
		167	req->result = -1;
		168
		169	#if HAVE_FIEMAP
		170	int count = req->int3;
		171
		172	/* heuristic: first try with 64 extents if we don't know how many, */
		173	/* as most files have (hopefully) fewer than this many extents */
		174	/* in fact, most should have <= 2, so maybe the 72 below is probably overkill */
		175	if (count < 0)
		176	count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */
		177
		178	for (;;)
		179	{
		180	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		181	errno = ENOMEM;
		182	if (!fiemap)
		183	return;
		184
		185	req->ptr1 = fiemap;
		186	req->flags |= EIO_FLAG_PTR1_FREE;
		187
		188	fiemap->fm_start = req->offs;
		189	fiemap->fm_length = req->size;
		190	fiemap->fm_flags = req->int2;
		191	fiemap->fm_extent_count = count;
		192
		193	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		194	return;
		195
		196	if (req->int3 >= 0)
		197	break; /* when not autosizing we are done */
		198
		199	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
		200	break; /* autosizing successful, we are done */
		201
		202	fiemap->fm_flags = req->int2;
		203	fiemap->fm_extent_count = 0;
		204
		205	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		206	return;
		207
		208	count = fiemap->fm_mapped_extents;
		209
		210	free (fiemap);
		211	}
		212
		213	req->result = 0;
		214
		215	#else
		216	errno = ENOSYS;
		217	#endif
		218	}
		219
		220	/*****************************************************************************/
		221
150	enum {	222	enum {
151	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	223	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
152	};	224	};
153		225
154	#include "libeio/eio.c"
155
156	typedef eio_req *aio_req;	226	typedef eio_req *aio_req;
157	typedef eio_req *aio_req_ornot;	227	typedef eio_req *aio_req_ornot;
		228	typedef eio_wd aio_wd;
158		229
159	static SV *on_next_submit;	230	static SV *on_next_submit;
160	static int next_pri = EIO_PRI_DEFAULT;	231	static int next_pri = EIO_PRI_DEFAULT;
161	static int max_outstanding;	232	static int max_outstanding;
162		233
163	static s_epipe respipe;	234	static s_epipe respipe;
164		235
165	static void req_destroy (aio_req req);	236	static void req_destroy (aio_req req);
166	static void req_cancel (aio_req req);	237	static void req_cancel (aio_req req);
167		238
168	static void want_poll (void)	239	static void
		240	want_poll (void)
169	{	241	{
170	/* write a dummy byte to the pipe so fh becomes ready */	242	/* write a dummy byte to the pipe so fh becomes ready */
171	s_epipe_signal (&respipe);	243	s_epipe_signal (&respipe);
172	}	244	}
173		245
174	static void done_poll (void)	246	static void
		247	done_poll (void)
175	{	248	{
176	/* read any signals sent by the worker threads */	249	/* read any signals sent by the worker threads */
177	s_epipe_drain (&respipe);	250	s_epipe_drain (&respipe);
178	}	251	}
179		252
180	/* must be called at most once */	253	/* must be called at most once */
		254	static SV *
181	static SV *req_sv (aio_req req, HV *stash)	255	req_sv (aio_req req, HV *stash)
182	{	256	{
183	if (!req->self)	257	if (!req->self)
184	{	258	{
185	req->self = (SV *)newHV ();	259	req->self = (SV *)newHV ();
186	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	260	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
187	}	261	}
188		262
189	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	263	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
190	}	264	}
191		265
192	static aio_req SvAIO_REQ (SV *sv)	266	static SV *
		267	newSVaio_wd (aio_wd wd)
		268	{
		269	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		270	}
		271
		272	static aio_req
		273	SvAIO_REQ (SV *sv)
193	{	274	{
194	MAGIC *mg;	275	MAGIC *mg;
195		276
196	if (!SvROK (sv)	277	if (!SvROK (sv)
		278	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
197	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	279	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
198	&& SvSTASH (SvRV (sv)) != aio_req_stash	280	&& SvSTASH (SvRV (sv)) != aio_req_stash
199	&& !sv_derived_from (sv, "IO::AIO::REQ")))	281	&& !sv_derived_from (sv, "IO::AIO::REQ")))
200	croak ("object of class IO::AIO::REQ expected");	282	croak ("object of class IO::AIO::REQ expected");
201		283
202	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	284	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
203		285
204	return mg ? (aio_req)mg->mg_ptr : 0;	286	return mg ? (aio_req)mg->mg_ptr : 0;
205	}	287	}
206		288
		289	static aio_wd
		290	SvAIO_WD (SV *sv)
		291	{
		292	if (!SvROK (sv)
		293	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		294	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		295	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		296
		297	return (aio_wd)(long)SvIVX (SvRV (sv));
		298	}
		299
		300	static void
207	static void aio_grp_feed (aio_req grp)	301	aio_grp_feed (aio_req grp)
208	{	302	{
209	if (grp->sv2 && SvOK (grp->sv2))	303	if (grp->sv2 && SvOK (grp->sv2))
210	{	304	{
211	dSP;	305	dSP;
212		306
…		…
220	FREETMPS;	314	FREETMPS;
221	LEAVE;	315	LEAVE;
222	}	316	}
223	}	317	}
224		318
		319	static void
225	static void req_submit (eio_req *req)	320	req_submit (eio_req *req)
226	{	321	{
227	eio_submit (req);	322	eio_submit (req);
228		323
229	if (expect_false (on_next_submit))	324	if (expect_false (on_next_submit))
230	{	325	{
…		…
237	PUTBACK;	332	PUTBACK;
238	call_sv (cb, G_DISCARD | G_EVAL);	333	call_sv (cb, G_DISCARD | G_EVAL);
239	}	334	}
240	}	335	}
241		336
		337	static int
242	static int req_invoke (eio_req *req)	338	req_invoke (eio_req *req)
243	{	339	{
244	dSP;
245
246	if (req->flags & FLAG_SV2_RO_OFF)	340	if (req->flags & FLAG_SV2_RO_OFF)
247	SvREADONLY_off (req->sv2);	341	SvREADONLY_off (req->sv2);
248		342
249	if (!EIO_CANCELLED (req) && req->callback)	343	if (!EIO_CANCELLED (req) && req->callback)
250	{	344	{
		345	dSP;
		346	static SV *sv_result_cache; /* caches the result integer SV */
		347	SV *sv_result;
		348
251	ENTER;	349	ENTER;
252	SAVETMPS;	350	SAVETMPS;
253	PUSHMARK (SP);	351	PUSHMARK (SP);
254	EXTEND (SP, 1);	352	EXTEND (SP, 1);
255		353
		354	/* do not recreate the result IV from scratch each time */
		355	if (expect_true (sv_result_cache))
		356	{
		357	sv_result = sv_result_cache; sv_result_cache = 0;
		358	SvIV_set (sv_result, req->result);
		359	SvIOK_only (sv_result);
		360	}
		361	else
		362	{
		363	sv_result = newSViv (req->result);
		364	SvREADONLY_on (sv_result);
		365	}
		366
256	switch (req->type)	367	switch (req->type)
257	{	368	{
		369	case EIO_WD_OPEN:
		370	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		371	break;
		372
258	case EIO_READDIR:	373	case EIO_READDIR:
259	{	374	{
260	SV *rv = &PL_sv_undef;	375	SV *rv = &PL_sv_undef;
261		376
262	if (req->result >= 0)	377	if (req->result >= 0)
…		…
345		460
346	PUSHs (fh);	461	PUSHs (fh);
347	}	462	}
348	break;	463	break;
349		464
		465	case EIO_STATVFS:
		466	case EIO_FSTATVFS:
		467	{
		468	SV *rv = &PL_sv_undef;
		469
		470	#ifndef _WIN32
		471	if (req->result >= 0)
		472	{
		473	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		474	HV *hv = newHV ();
		475
		476	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		477
		478	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		479	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		480	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		481	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		482	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		483	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		484	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		485	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		486	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		487	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		488	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		489	}
		490	#endif
		491
		492	PUSHs (rv);
		493	}
		494
		495	break;
		496
350	case EIO_GROUP:	497	case EIO_GROUP:
351	req->int1 = 2; /* mark group as finished */	498	req->int1 = 2; /* mark group as finished */
352		499
353	if (req->sv1)	500	if (req->sv1)
354	{	501	{
…		…
364	case EIO_NOP:	511	case EIO_NOP:
365	case EIO_BUSY:	512	case EIO_BUSY:
366	break;	513	break;
367		514
368	case EIO_READLINK:	515	case EIO_READLINK:
		516	case EIO_REALPATH:
369	if (req->result > 0)	517	if (req->result > 0)
370	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	518	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
371	break;	519	break;
372		520
373	case EIO_STAT:	521	case EIO_STAT:
374	case EIO_LSTAT:	522	case EIO_LSTAT:
375	case EIO_FSTAT:	523	case EIO_FSTAT:
376	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	524	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		525
377	PL_laststatval = req->result;	526	if (!(PL_laststatval = req->result))
		527	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
378	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	528	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
379	PUSHs (sv_2mortal (newSViv (req->result)));	529
		530	PUSHs (sv_result);
		531	break;
		532
		533	case EIO_SEEK:
		534	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
380	break;	535	break;
381		536
382	case EIO_READ:	537	case EIO_READ:
383	{	538	{
384	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	539	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
385	*SvEND (req->sv2) = 0;	540	*SvEND (req->sv2) = 0;
386	SvPOK_only (req->sv2);	541	SvPOK_only (req->sv2);
387	SvSETMAGIC (req->sv2);	542	SvSETMAGIC (req->sv2);
388	PUSHs (sv_2mortal (newSViv (req->result)));	543	PUSHs (sv_result);
389	}	544	}
390	break;	545	break;
391		546
392	case EIO_DUP2:	547	case EIO_CUSTOM:
		548	if (req->feed == fiemap)
		549	{
		550	#if HAVE_FIEMAP
		551	if (!req->result)
		552	{
		553	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		554
		555	if (fiemap->fm_extent_count)
		556	{
		557	AV *av = newAV ();
		558	int i;
		559
		560	while (fiemap->fm_mapped_extents)
		561	{
		562	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		563	AV *ext_av = newAV ();
		564
		565	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		566	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		567	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		568	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		569
		570	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		571	}
		572
		573	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		574	}
		575	else
		576	{
		577	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		578	PUSHs (sv_result);
		579	}
		580	}
		581	#endif
		582	}
		583	else
		584	PUSHs (sv_result);
		585	break;
		586
		587	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
393	if (req->result > 0)	588	if (req->result > 0)
394	req->result = 0;	589	SvIV_set (sv_result, 0);
395	/* FALLTHROUGH */	590	/* FALLTHROUGH */
396		591
397	default:	592	default:
398	PUSHs (sv_2mortal (newSViv (req->result)));	593	PUSHs (sv_result);
399	break;	594	break;
400	}	595	}
401		596
402	errno = req->errorno;	597	errno = req->errorno;
403		598
404	PUTBACK;	599	PUTBACK;
405	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	600	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
406	SPAGAIN;	601	SPAGAIN;
407		602
		603	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		604	SvREFCNT_dec (sv_result);
		605	else
		606	sv_result_cache = sv_result;
		607
408	FREETMPS;	608	FREETMPS;
409	LEAVE;	609	LEAVE;
410		610
411	PUTBACK;	611	PUTBACK;
412	}	612	}
413		613
414	return !!SvTRUE (ERRSV);	614	return !!SvTRUE (ERRSV);
415	}	615	}
416		616
		617	static void
417	static void req_destroy (aio_req req)	618	req_destroy (aio_req req)
418	{	619	{
419	if (req->self)	620	if (req->self)
420	{	621	{
421	sv_unmagic (req->self, PERL_MAGIC_ext);	622	sv_unmagic (req->self, PERL_MAGIC_ext);
422	SvREFCNT_dec (req->self);	623	SvREFCNT_dec (req->self);
423	}	624	}
424		625
425	SvREFCNT_dec (req->sv1);	626	SvREFCNT_dec (req->sv1);
426	SvREFCNT_dec (req->sv2);	627	SvREFCNT_dec (req->sv2);
		628	SvREFCNT_dec (req->sv3);
		629	SvREFCNT_dec (req->sv4);
427	SvREFCNT_dec (req->callback);	630	SvREFCNT_dec (req->callback);
428		631
429	Safefree (req);	632	free (req);
430	}	633	}
431		634
		635	static void
432	static void req_cancel_subs (aio_req grp)	636	req_cancel_subs (aio_req grp)
433	{	637	{
434	aio_req sub;
435
436	if (grp->type != EIO_GROUP)	638	if (grp->type != EIO_GROUP)
437	return;	639	return;
438		640
439	SvREFCNT_dec (grp->sv2);	641	SvREFCNT_dec (grp->sv2);
440	grp->sv2 = 0;	642	grp->sv2 = 0;
441		643
442	eio_grp_cancel (grp);	644	eio_grp_cancel (grp);
443	}	645	}
444		646
445	static void	647	static void ecb_cold
446	create_respipe (void)	648	create_respipe (void)
447	{	649	{
448	if (s_epipe_renew (&respipe))	650	if (s_epipe_renew (&respipe))
449	croak ("IO::AIO: unable to initialize result pipe");	651	croak ("IO::AIO: unable to initialize result pipe");
450	}	652	}
451		653
452	static void poll_wait (void)	654	static void
		655	poll_wait (void)
453	{	656	{
454	while (eio_nreqs ())	657	while (eio_nreqs ())
455	{	658	{
456	int size;	659	int size;
457		660
…		…
466		669
467	s_epipe_wait (&respipe);	670	s_epipe_wait (&respipe);
468	}	671	}
469	}	672	}
470		673
471	static int poll_cb (void)	674	static int
		675	poll_cb (void)
472	{	676	{
473	for (;;)	677	for (;;)
474	{	678	{
475	int res = eio_poll ();	679	int res = eio_poll ();
476		680
…		…
482		686
483	poll_wait ();	687	poll_wait ();
484	}	688	}
485	}	689	}
486		690
487	static void atfork_child (void)	691	static void ecb_cold
		692	reinit (void)
488	{	693	{
489	create_respipe ();	694	create_respipe ();
		695
		696	if (eio_init (want_poll, done_poll) < 0)
		697	croak ("IO::AIO: unable to initialise eio library");
490	}	698	}
		699
		700	/*****************************************************************************/
		701
		702	#if !_POSIX_MAPPED_FILES
		703	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		704	# define munmap(addr,length) (errno = ENOSYS, -1)
		705	#endif
		706
		707	#if !_POSIX_MEMORY_PROTECTION
		708	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		709	# define PROT_NONE 0
		710	# define PROT_WRITE 0
		711	# define MAP_PRIVATE 0
		712	# define MAP_SHARED 0
		713	# define MAP_FIXED 0
		714	#endif
		715
		716	#define MMAP_MAGIC PERL_MAGIC_ext
		717
		718	static int ecb_cold
		719	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		720	{
		721	int old_errno = errno;
		722	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		723	errno = old_errno;
		724
		725	mg->mg_obj = 0; /* just in case */
		726
		727	SvREADONLY_off (sv);
		728
		729	if (SvPVX (sv) != mg->mg_ptr)
		730	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		731
		732	SvCUR_set (sv, 0);
		733	SvPVX (sv) = 0;
		734	SvOK_off (sv);
		735
		736	return 0;
		737	}
		738
		739	static MGVTBL mmap_vtbl = {
		740	0, 0, 0, 0, mmap_free
		741	};
		742
		743	/*****************************************************************************/
491		744
492	static SV *	745	static SV *
493	get_cb (SV *cb_sv)	746	get_cb (SV *cb_sv)
494	{	747	{
495	SvGETMAGIC (cb_sv);	748	SvGETMAGIC (cb_sv);
496	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	749	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
497	}	750	}
498		751
		752	static aio_req ecb_noinline
		753	dreq (SV *callback)
		754	{
		755	SV *cb_cv;
		756	aio_req req;
		757	int req_pri = next_pri;
		758	next_pri = EIO_PRI_DEFAULT;
		759
		760	cb_cv = get_cb (callback);
		761
		762	req = calloc (sizeof (*req), 1);
		763	if (!req)
		764	croak ("out of memory during eio_req allocation");
		765
		766	req->callback = SvREFCNT_inc (cb_cv);
		767	req->pri = req_pri;
		768
		769	return req;
		770	}
		771
499	#define dREQ \	772	#define dREQ \
500	SV *cb_cv; \	773	aio_req req = dreq (callback); \
501	aio_req req; \
502	int req_pri = next_pri; \
503	next_pri = EIO_PRI_DEFAULT; \
504	\
505	cb_cv = get_cb (callback); \
506	\
507	Newz (0, req, 1, eio_req); \
508	if (!req) \
509	croak ("out of memory during eio_req allocation"); \
510	\
511	req->callback = SvREFCNT_inc (cb_cv); \
512	req->pri = req_pri
513		774
514	#define REQ_SEND \	775	#define REQ_SEND \
515	PUTBACK; \	776	PUTBACK; \
516	req_submit (req); \	777	req_submit (req); \
517	SPAGAIN; \	778	SPAGAIN; \
518	\	779	\
519	if (GIMME_V != G_VOID) \	780	if (GIMME_V != G_VOID) \
520	XPUSHs (req_sv (req, aio_req_stash));	781	XPUSHs (req_sv (req, aio_req_stash));
521		782
		783	ecb_inline void
		784	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		785	{
		786	if (expect_false (SvROK (path)))
		787	{
		788	SV *rv = SvRV (path);
		789	SV *wdob;
		790
		791	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		792	{
		793	path = AvARRAY (rv)[1];
		794	wdob = AvARRAY (rv)[0];
		795
		796	if (SvOK (wdob))
		797	{
		798	*wd = SvAIO_WD (wdob);
		799	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		800	}
		801	else
		802	*wd = EIO_INVALID_WD;
		803	}
		804	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		805	{
		806	*wd = (aio_wd)(long)SvIVX (rv);
		807	*wdsv = SvREFCNT_inc_NN (rv);
		808	*ptr = ".";
		809	return; /* path set to "." */
		810	}
		811	else
		812	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		813	}
		814
		815	*pathsv = newSVsv (path);
		816	*ptr = SvPVbyte_nolen (*pathsv);
		817	}
		818
		819	static void ecb_noinline
		820	req_set_path1 (aio_req req, SV *path)
		821	{
		822	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		823	}
		824
		825	static void ecb_noinline
		826	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		827	{
		828	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		829
		830	switch (SvTYPE (rv))
		831	{
		832	case SVt_PVIO:
		833	case SVt_PVLV:
		834	case SVt_PVGV:
		835	req->type = type_fh;
		836	req->sv1 = newSVsv (fh_or_path);
		837	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		838	break;
		839
		840	default:
		841	req->type = type_path;
		842	req_set_path1 (req, fh_or_path);
		843	break;
		844	}
		845	}
		846
		847	XS(boot_IO__AIO) ecb_cold;
		848
522	MODULE = IO::AIO PACKAGE = IO::AIO	849	MODULE = IO::AIO PACKAGE = IO::AIO
523		850
524	PROTOTYPES: ENABLE	851	PROTOTYPES: ENABLE
525		852
526	BOOT:	853	BOOT:
527	{	854	{
528	static const struct {	855	static const struct {
529	const char *name;	856	const char *name;
530	IV iv;	857	IV iv;
531	} *civ, const_iv[] = {	858	} *civ, const_iv[] = {
532	# define const_iv(name, value) { # name, (IV) value },	859	# define const_niv(name, value) { # name, (IV) value },
		860	# define const_iv(name) { # name, (IV) name },
533	# define const_eio(name) { # name, (IV) EIO_ ## name },	861	# define const_eio(name) { # name, (IV) EIO_ ## name },
534	const_iv (EXDEV , EXDEV)	862
		863	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		864
535	const_iv (ENOSYS , ENOSYS)	865	const_iv (ENOSYS)
		866	const_iv (EXDEV)
		867	const_iv (EBADR)
		868
536	const_iv (O_RDONLY, O_RDONLY)	869	const_iv (O_RDONLY)
537	const_iv (O_WRONLY, O_WRONLY)	870	const_iv (O_WRONLY)
		871	const_iv (O_RDWR)
538	const_iv (O_CREAT , O_CREAT)	872	const_iv (O_CREAT)
539	const_iv (O_TRUNC , O_TRUNC)	873	const_iv (O_TRUNC)
540	#ifndef _WIN32	874	const_iv (O_EXCL)
		875	const_iv (O_APPEND)
		876
		877	const_iv (O_ASYNC)
		878	const_iv (O_DIRECT)
		879	const_iv (O_NOATIME)
		880
		881	const_iv (O_CLOEXEC)
		882	const_iv (O_NOCTTY)
		883	const_iv (O_NOFOLLOW)
		884	const_iv (O_NONBLOCK)
		885	const_iv (O_EXEC)
		886	const_iv (O_SEARCH)
		887	const_iv (O_DIRECTORY)
		888	const_iv (O_DSYNC)
		889	const_iv (O_RSYNC)
		890	const_iv (O_SYNC)
		891	const_iv (O_TTY_INIT)
		892
541	const_iv (S_IFIFO , S_IFIFO)	893	const_iv (S_IFIFO)
542	#endif	894	const_iv (S_IFCHR)
		895	const_iv (S_IFBLK)
		896	const_iv (S_IFLNK)
		897	const_iv (S_IFREG)
		898	const_iv (S_IFDIR)
		899	const_iv (S_IFWHT)
		900	const_iv (S_IFSOCK)
		901	const_iv (S_IFMT)
		902
543	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	903	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
544	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	904	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
545	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	905	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
546	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	906	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
547	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	907	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
548	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	908	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		909
		910	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		911	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		912	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		913	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		914	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		915
		916	const_iv (ST_RDONLY)
		917	const_iv (ST_NOSUID)
		918	const_iv (ST_NODEV)
		919	const_iv (ST_NOEXEC)
		920	const_iv (ST_SYNCHRONOUS)
		921	const_iv (ST_MANDLOCK)
		922	const_iv (ST_WRITE)
		923	const_iv (ST_APPEND)
		924	const_iv (ST_IMMUTABLE)
		925	const_iv (ST_NOATIME)
		926	const_iv (ST_NODIRATIME)
		927	const_iv (ST_RELATIME)
		928
		929	const_iv (PROT_NONE)
		930	const_iv (PROT_EXEC)
		931	const_iv (PROT_READ)
		932	const_iv (PROT_WRITE)
		933
		934	/*const_iv (MAP_FIXED)*/
		935	const_iv (MAP_PRIVATE)
		936	const_iv (MAP_SHARED)
		937	const_iv (MAP_ANONYMOUS)
		938
		939	/* linuxish */
		940	const_iv (MAP_HUGETLB)
		941	const_iv (MAP_LOCKED)
		942	const_iv (MAP_NORESERVE)
		943	const_iv (MAP_POPULATE)
		944	const_iv (MAP_NONBLOCK)
		945
		946	const_iv (FIEMAP_FLAG_SYNC)
		947	const_iv (FIEMAP_FLAG_XATTR)
		948	const_iv (FIEMAP_FLAGS_COMPAT)
		949	const_iv (FIEMAP_EXTENT_LAST)
		950	const_iv (FIEMAP_EXTENT_UNKNOWN)
		951	const_iv (FIEMAP_EXTENT_DELALLOC)
		952	const_iv (FIEMAP_EXTENT_ENCODED)
		953	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		954	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		955	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		956	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		957	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		958	const_iv (FIEMAP_EXTENT_MERGED)
		959	const_iv (FIEMAP_EXTENT_SHARED)
		960
		961	const_eio (SEEK_SET)
		962	const_eio (SEEK_CUR)
		963	const_eio (SEEK_END)
		964
		965	const_eio (MCL_FUTURE)
		966	const_eio (MCL_CURRENT)
		967
		968	const_eio (MS_ASYNC)
		969	const_eio (MS_INVALIDATE)
		970	const_eio (MS_SYNC)
		971
		972	const_eio (MT_MODIFY)
549		973
550	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	974	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
551	const_eio (SYNC_FILE_RANGE_WRITE)	975	const_eio (SYNC_FILE_RANGE_WRITE)
552	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	976	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		977
		978	const_eio (FALLOC_FL_KEEP_SIZE)
553		979
554	const_eio (READDIR_DENTS)	980	const_eio (READDIR_DENTS)
555	const_eio (READDIR_DIRS_FIRST)	981	const_eio (READDIR_DIRS_FIRST)
556	const_eio (READDIR_STAT_ORDER)	982	const_eio (READDIR_STAT_ORDER)
557	const_eio (READDIR_FOUND_UNKNOWN)	983	const_eio (READDIR_FOUND_UNKNOWN)
…		…
568	};	994	};
569		995
570	aio_stash = gv_stashpv ("IO::AIO" , 1);	996	aio_stash = gv_stashpv ("IO::AIO" , 1);
571	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	997	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
572	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	998	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		999	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
573		1000
574	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1001	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
575	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1002	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
576		1003
577	create_respipe ();	1004	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
578		1005
579	if (eio_init (want_poll, done_poll) < 0)	1006	reinit ();
580	croak ("IO::AIO: unable to initialise eio library");
581
582	/* atfork child called in fifo order, so before eio's handler */
583	X_THREAD_ATFORK (0, 0, atfork_child);
584	}	1007	}
585		1008
586	void	1009	void
		1010	reinit ()
		1011	PROTOTYPE:
		1012
		1013	void
587	max_poll_reqs (int nreqs)	1014	max_poll_reqs (unsigned int nreqs)
588	PROTOTYPE: $	1015	PROTOTYPE: $
589	CODE:	1016	CODE:
590	eio_set_max_poll_reqs (nreqs);	1017	eio_set_max_poll_reqs (nreqs);
591		1018
592	void	1019	void
…		…
594	PROTOTYPE: $	1021	PROTOTYPE: $
595	CODE:	1022	CODE:
596	eio_set_max_poll_time (nseconds);	1023	eio_set_max_poll_time (nseconds);
597		1024
598	void	1025	void
599	min_parallel (int nthreads)	1026	min_parallel (unsigned int nthreads)
600	PROTOTYPE: $	1027	PROTOTYPE: $
601	CODE:	1028	CODE:
602	eio_set_min_parallel (nthreads);	1029	eio_set_min_parallel (nthreads);
603		1030
604	void	1031	void
605	max_parallel (int nthreads)	1032	max_parallel (unsigned int nthreads)
606	PROTOTYPE: $	1033	PROTOTYPE: $
607	CODE:	1034	CODE:
608	eio_set_max_parallel (nthreads);	1035	eio_set_max_parallel (nthreads);
609		1036
610	void	1037	void
611	max_idle (int nthreads)	1038	max_idle (unsigned int nthreads)
612	PROTOTYPE: $	1039	PROTOTYPE: $
613	CODE:	1040	CODE:
614	eio_set_max_idle (nthreads);	1041	eio_set_max_idle (nthreads);
615		1042
616	void	1043	void
		1044	idle_timeout (unsigned int seconds)
		1045	PROTOTYPE: $
		1046	CODE:
		1047	eio_set_idle_timeout (seconds);
		1048
		1049	void
617	max_outstanding (int maxreqs)	1050	max_outstanding (unsigned int maxreqs)
618	PROTOTYPE: $	1051	PROTOTYPE: $
619	CODE:	1052	CODE:
620	max_outstanding = maxreqs;	1053	max_outstanding = maxreqs;
621		1054
622	void	1055	void
		1056	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1057	PPCODE:
		1058	{
		1059	dREQ;
		1060
		1061	req->type = EIO_WD_OPEN;
		1062	req_set_path1 (req, pathname);
		1063
		1064	REQ_SEND;
		1065	}
		1066
		1067	void
623	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1068	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
624	PROTOTYPE: $$$;$
625	PPCODE:	1069	PPCODE:
626	{	1070	{
627	dREQ;	1071	dREQ;
628		1072
629	req->type = EIO_OPEN;	1073	req->type = EIO_OPEN;
630	req->sv1 = newSVsv (pathname);	1074	req_set_path1 (req, pathname);
631	req->ptr1 = SvPVbyte_nolen (req->sv1);
632	req->int1 = flags;	1075	req->int1 = flags;
633	req->int2 = mode;	1076	req->int2 = mode;
634		1077
635	REQ_SEND;	1078	REQ_SEND;
636	}	1079	}
637		1080
638	void	1081	void
639	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1082	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
640	PROTOTYPE: $;$
641	ALIAS:	1083	ALIAS:
642	aio_fsync = EIO_FSYNC	1084	aio_fsync = EIO_FSYNC
643	aio_fdatasync = EIO_FDATASYNC	1085	aio_fdatasync = EIO_FDATASYNC
		1086	aio_syncfs = EIO_SYNCFS
644	PPCODE:	1087	PPCODE:
645	{	1088	{
646	int fd = s_fileno_croak (fh, 0);	1089	int fd = s_fileno_croak (fh, 0);
647	dREQ;	1090	dREQ;
648		1091
649	req->type = ix;	1092	req->type = ix;
650	req->sv1 = newSVsv (fh);	1093	req->sv1 = newSVsv (fh);
651	req->int1 = fd;	1094	req->int1 = fd;
652		1095
653	REQ_SEND (req);	1096	REQ_SEND;
654	}	1097	}
655		1098
656	void	1099	void
657	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1100	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
658	PROTOTYPE: $$$$;$
659	PPCODE:	1101	PPCODE:
660	{	1102	{
661	int fd = s_fileno_croak (fh, 0);	1103	int fd = s_fileno_croak (fh, 0);
662	dREQ;	1104	dREQ;
663		1105
…		…
666	req->int1 = fd;	1108	req->int1 = fd;
667	req->offs = offset;	1109	req->offs = offset;
668	req->size = nbytes;	1110	req->size = nbytes;
669	req->int2 = flags;	1111	req->int2 = flags;
670		1112
671	REQ_SEND (req);	1113	REQ_SEND;
672	}	1114	}
673		1115
674	void	1116	void
675	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1117	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
676	PROTOTYPE: $;$
677	PPCODE:	1118	PPCODE:
678	{	1119	{
679	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
680	int fd = s_fileno_croak (fh, 0);	1120	int fd = s_fileno_croak (fh, 0);
681	dREQ;	1121	dREQ;
682		1122
683	if (close_pipe < 0)	1123	req->type = EIO_FALLOCATE;
		1124	req->sv1 = newSVsv (fh);
		1125	req->int1 = fd;
		1126	req->int2 = mode;
		1127	req->offs = offset;
		1128	req->size = len;
		1129
		1130	REQ_SEND;
		1131	}
		1132
		1133	void
		1134	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		1135	PPCODE:
		1136	{
		1137	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1138	int fd = s_fileno_croak (fh, 0);
		1139	dREQ;
		1140
		1141	if (expect_false (close_fd < 0))
684	{	1142	{
685	int pipefd [2];	1143	int pipefd [2];
686		1144
		1145	if (
		1146	#ifdef _WIN32
		1147	_pipe (pipefd, 1, _O_BINARY) < 0
		1148	#else
687	if (pipe (pipefd) < 0	1149	pipe (pipefd) < 0
688	|| close (pipefd [1]) < 0
689	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1150	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1151	#endif
		1152	|| close (pipefd [1]) < 0
		1153	)
690	abort (); /*D*/	1154	abort (); /*D*/
691		1155
692	close_pipe = pipefd [0];	1156	close_fd = pipefd [0];
693	}	1157	}
694		1158
695	req->type = EIO_DUP2;	1159	req->type = EIO_DUP2;
696	req->int1 = close_pipe;	1160	req->int1 = close_fd;
697	req->sv2 = newSVsv (fh);	1161	req->sv2 = newSVsv (fh);
698	req->int2 = fd;	1162	req->int2 = fd;
699		1163
700	REQ_SEND (req);	1164	REQ_SEND;
		1165	}
		1166
		1167	void
		1168	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1169	PPCODE:
		1170	{
		1171	int fd = s_fileno_croak (fh, 0);
		1172	dREQ;
		1173
		1174	req->type = EIO_SEEK;
		1175	req->sv1 = newSVsv (fh);
		1176	req->int1 = fd;
		1177	req->offs = SvVAL64 (offset);
		1178	req->int2 = whence;
		1179
		1180	REQ_SEND;
701	}	1181	}
702		1182
703	void	1183	void
704	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1184	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
705	ALIAS:	1185	ALIAS:
706	aio_read = EIO_READ	1186	aio_read = EIO_READ
707	aio_write = EIO_WRITE	1187	aio_write = EIO_WRITE
708	PROTOTYPE: $$$$$;$
709	PPCODE:	1188	PPCODE:
710	{	1189	{
711	STRLEN svlen;	1190	STRLEN svlen;
712	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1191	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
713	char *svptr = SvPVbyte (data, svlen);	1192	char *svptr = SvPVbyte (data, svlen);
…		…
753	REQ_SEND;	1232	REQ_SEND;
754	}	1233	}
755	}	1234	}
756		1235
757	void	1236	void
758	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1237	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
759	PROTOTYPE: $$;$	1238	ALIAS:
		1239	aio_readlink = EIO_READLINK
		1240	aio_realpath = EIO_REALPATH
760	PPCODE:	1241	PPCODE:
761	{	1242	{
762	SV *data;
763	dREQ;	1243	dREQ;
764		1244
765	req->type = EIO_READLINK;	1245	req->type = ix;
766	req->sv1 = newSVsv (path);	1246	req_set_path1 (req, pathname);
767	req->ptr1 = SvPVbyte_nolen (req->sv1);
768		1247
769	REQ_SEND;	1248	REQ_SEND;
770	}	1249	}
771		1250
772	void	1251	void
773	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1252	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
774	PROTOTYPE: $$$$;$
775	PPCODE:	1253	PPCODE:
776	{	1254	{
777	int ifd = s_fileno_croak (in_fh , 0);	1255	int ifd = s_fileno_croak (in_fh , 0);
778	int ofd = s_fileno_croak (out_fh, 1);	1256	int ofd = s_fileno_croak (out_fh, 1);
779	dREQ;	1257	dREQ;
…		…
789	REQ_SEND;	1267	REQ_SEND;
790	}	1268	}
791		1269
792	void	1270	void
793	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1271	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
794	PROTOTYPE: $$$;$
795	PPCODE:	1272	PPCODE:
796	{	1273	{
797	int fd = s_fileno_croak (fh, 0);	1274	int fd = s_fileno_croak (fh, 0);
798	dREQ;	1275	dREQ;
799		1276
…		…
807	}	1284	}
808		1285
809	void	1286	void
810	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1287	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
811	ALIAS:	1288	ALIAS:
812	aio_stat = EIO_STAT	1289	aio_stat = EIO_STAT
813	aio_lstat = EIO_LSTAT	1290	aio_lstat = EIO_LSTAT
		1291	aio_statvfs = EIO_STATVFS
814	PPCODE:	1292	PPCODE:
815	{	1293	{
816	dREQ;	1294	dREQ;
817		1295
818	req->sv1 = newSVsv (fh_or_path);	1296	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
819
820	if (SvPOK (req->sv1))
821	{
822	req->type = ix;
823	req->ptr1 = SvPVbyte_nolen (req->sv1);
824	}
825	else
826	{
827	req->type = EIO_FSTAT;
828	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
829	}
830		1297
831	REQ_SEND;	1298	REQ_SEND;
832	}	1299	}
		1300
		1301	UV
		1302	major (UV dev)
		1303	ALIAS:
		1304	minor = 1
		1305	CODE:
		1306	RETVAL = ix ? major (dev) : minor (dev);
		1307	OUTPUT:
		1308	RETVAL
		1309
		1310	UV
		1311	makedev (UV maj, UV min)
		1312	CODE:
		1313	RETVAL = makedev (maj, min);
		1314	OUTPUT:
		1315	RETVAL
833		1316
834	void	1317	void
835	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1318	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
836	PPCODE:	1319	PPCODE:
837	{	1320	{
838	dREQ;	1321	dREQ;
839		1322
840	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1323	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
841	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1324	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
842	req->sv1 = newSVsv (fh_or_path);	1325	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
843
844	if (SvPOK (req->sv1))
845	{
846	req->type = EIO_UTIME;
847	req->ptr1 = SvPVbyte_nolen (req->sv1);
848	}
849	else
850	{
851	req->type = EIO_FUTIME;
852	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
853	}
854		1326
855	REQ_SEND;	1327	REQ_SEND;
856	}	1328	}
857		1329
858	void	1330	void
859	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1331	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
860	PPCODE:	1332	PPCODE:
861	{	1333	{
862	dREQ;	1334	dREQ;
863		1335
864	req->sv1 = newSVsv (fh_or_path);
865	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1336	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
866		1337	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
867	if (SvPOK (req->sv1))
868	{
869	req->type = EIO_TRUNCATE;
870	req->ptr1 = SvPVbyte_nolen (req->sv1);
871	}
872	else
873	{
874	req->type = EIO_FTRUNCATE;
875	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
876	}
877		1338
878	REQ_SEND;	1339	REQ_SEND;
879	}	1340	}
880		1341
881	void	1342	void
882	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1343	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
883	ALIAS:
884	aio_chmod = EIO_CHMOD
885	aio_mkdir = EIO_MKDIR
886	PPCODE:	1344	PPCODE:
887	{	1345	{
888	dREQ;	1346	dREQ;
889		1347
890	req->int2 = mode;	1348	req->int2 = mode;
891	req->sv1 = newSVsv (fh_or_path);	1349	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
892
893	if (SvPOK (req->sv1))
894	{
895	req->type = ix;
896	req->ptr1 = SvPVbyte_nolen (req->sv1);
897	}
898	else
899	{
900	req->type = EIO_FCHMOD;
901	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
902	}
903		1350
904	REQ_SEND;	1351	REQ_SEND;
905	}	1352	}
906		1353
907	void	1354	void
…		…
910	{	1357	{
911	dREQ;	1358	dREQ;
912		1359
913	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1360	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
914	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1361	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
915	req->sv1 = newSVsv (fh_or_path);	1362	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
916
917	if (SvPOK (req->sv1))
918	{
919	req->type = EIO_CHOWN;
920	req->ptr1 = SvPVbyte_nolen (req->sv1);
921	}
922	else
923	{
924	req->type = EIO_FCHOWN;
925	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
926	}
927		1363
928	REQ_SEND;	1364	REQ_SEND;
929	}	1365	}
930		1366
931	void	1367	void
…		…
933	PPCODE:	1369	PPCODE:
934	{	1370	{
935	dREQ;	1371	dREQ;
936		1372
937	req->type = EIO_READDIR;	1373	req->type = EIO_READDIR;
938	req->sv1 = newSVsv (pathname);
939	req->ptr1 = SvPVbyte_nolen (req->sv1);
940	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1374	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
941		1375
942	if (flags & EIO_READDIR_DENTS)	1376	if (flags & EIO_READDIR_DENTS)
943	req->int1 |= EIO_READDIR_CUSTOM2;	1377	req->int1 |= EIO_READDIR_CUSTOM2;
944		1378
		1379	req_set_path1 (req, pathname);
		1380
945	REQ_SEND;	1381	REQ_SEND;
		1382	}
		1383
		1384	void
		1385	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1386	PPCODE:
		1387	{
		1388	dREQ;
		1389
		1390	req->type = EIO_MKDIR;
		1391	req->int2 = mode;
		1392	req_set_path1 (req, pathname);
		1393
		1394	REQ_SEND;
946	}	1395	}
947		1396
948	void	1397	void
949	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1398	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
950	ALIAS:	1399	ALIAS:
…		…
954	PPCODE:	1403	PPCODE:
955	{	1404	{
956	dREQ;	1405	dREQ;
957		1406
958	req->type = ix;	1407	req->type = ix;
959	req->sv1 = newSVsv (pathname);	1408	req_set_path1 (req, pathname);
960	req->ptr1 = SvPVbyte_nolen (req->sv1);
961		1409
962	REQ_SEND;	1410	REQ_SEND;
963	}	1411	}
964		1412
965	void	1413	void
…		…
968	aio_link = EIO_LINK	1416	aio_link = EIO_LINK
969	aio_symlink = EIO_SYMLINK	1417	aio_symlink = EIO_SYMLINK
970	aio_rename = EIO_RENAME	1418	aio_rename = EIO_RENAME
971	PPCODE:	1419	PPCODE:
972	{	1420	{
		1421	eio_wd wd2 = 0;
973	dREQ;	1422	dREQ;
974		1423
975	req->type = ix;	1424	req->type = ix;
976	req->sv1 = newSVsv (oldpath);	1425	req_set_path1 (req, oldpath);
977	req->ptr1 = SvPVbyte_nolen (req->sv1);	1426	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
978	req->sv2 = newSVsv (newpath);	1427	req->int3 = (long)wd2;
979	req->ptr2 = SvPVbyte_nolen (req->sv2);
980		1428
981	REQ_SEND;	1429	REQ_SEND;
982	}	1430	}
983		1431
984	void	1432	void
…		…
986	PPCODE:	1434	PPCODE:
987	{	1435	{
988	dREQ;	1436	dREQ;
989		1437
990	req->type = EIO_MKNOD;	1438	req->type = EIO_MKNOD;
991	req->sv1 = newSVsv (pathname);
992	req->ptr1 = SvPVbyte_nolen (req->sv1);
993	req->int2 = (mode_t)mode;	1439	req->int2 = (mode_t)mode;
994	req->offs = dev;	1440	req->offs = dev;
		1441	req_set_path1 (req, pathname);
995		1442
996	REQ_SEND;	1443	REQ_SEND;
997	}	1444	}
998		1445
999	void	1446	void
		1447	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1448	ALIAS:
		1449	aio_mtouch = EIO_MTOUCH
		1450	aio_msync = EIO_MSYNC
		1451	PPCODE:
		1452	{
		1453	STRLEN svlen;
		1454	char *svptr = SvPVbyte (data, svlen);
		1455	UV len = SvUV (length);
		1456
		1457	if (offset < 0)
		1458	offset += svlen;
		1459
		1460	if (offset < 0 || offset > svlen)
		1461	croak ("offset outside of scalar");
		1462
		1463	if (!SvOK (length) || len + offset > svlen)
		1464	len = svlen - offset;
		1465
		1466	{
		1467	dREQ;
		1468
		1469	req->type = ix;
		1470	req->sv2 = SvREFCNT_inc (data);
		1471	req->ptr2 = (char *)svptr + offset;
		1472	req->size = len;
		1473	req->int1 = flags;
		1474
		1475	REQ_SEND;
		1476	}
		1477	}
		1478
		1479	void
		1480	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1481	PPCODE:
		1482	{
		1483	STRLEN svlen;
		1484	char *svptr = SvPVbyte (data, svlen);
		1485	UV len = SvUV (length);
		1486
		1487	if (offset < 0)
		1488	offset += svlen;
		1489
		1490	if (offset < 0 || offset > svlen)
		1491	croak ("offset outside of scalar");
		1492
		1493	if (!SvOK (length) || len + offset > svlen)
		1494	len = svlen - offset;
		1495
		1496	{
		1497	dREQ;
		1498
		1499	req->type = EIO_MLOCK;
		1500	req->sv2 = SvREFCNT_inc (data);
		1501	req->ptr2 = (char *)svptr + offset;
		1502	req->size = len;
		1503
		1504	REQ_SEND;
		1505	}
		1506	}
		1507
		1508	void
		1509	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1510	PPCODE:
		1511	{
		1512	dREQ;
		1513
		1514	req->type = EIO_MLOCKALL;
		1515	req->int1 = flags;
		1516
		1517	REQ_SEND;
		1518	}
		1519
		1520	void
		1521	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1522	PPCODE:
		1523	{
		1524	int fd = s_fileno_croak (fh, 0);
		1525	dREQ;
		1526
		1527	req->type = EIO_CUSTOM;
		1528	req->sv1 = newSVsv (fh);
		1529	req->int1 = fd;
		1530
		1531	req->feed = fiemap;
		1532	#if HAVE_FIEMAP
		1533	/* keep our fingers crossed that the next two types are 64 bit */
		1534	req->offs = start;
		1535	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1536	req->int2 = flags;
		1537	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1538	#endif
		1539
		1540	REQ_SEND;
		1541	}
		1542
		1543	void
1000	aio_busy (double delay, SV *callback=&PL_sv_undef)	1544	aio_busy (double delay, SV *callback=&PL_sv_undef)
1001	PPCODE:	1545	PPCODE:
1002	{	1546	{
1003	dREQ;	1547	dREQ;
1004		1548
…		…
1008	REQ_SEND;	1552	REQ_SEND;
1009	}	1553	}
1010		1554
1011	void	1555	void
1012	aio_group (SV *callback=&PL_sv_undef)	1556	aio_group (SV *callback=&PL_sv_undef)
1013	PROTOTYPE: ;$
1014	PPCODE:	1557	PPCODE:
1015	{	1558	{
1016	dREQ;	1559	dREQ;
1017		1560
1018	req->type = EIO_GROUP;	1561	req->type = EIO_GROUP;
…		…
1035	REQ_SEND;	1578	REQ_SEND;
1036	}	1579	}
1037		1580
1038	int	1581	int
1039	aioreq_pri (int pri = 0)	1582	aioreq_pri (int pri = 0)
1040	PROTOTYPE: ;$
1041	CODE:	1583	CODE:
1042	RETVAL = next_pri;	1584	RETVAL = next_pri;
1043	if (items > 0)	1585	if (items > 0)
1044	{	1586	{
1045	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1587	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1057	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1599	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1058	next_pri = nice;	1600	next_pri = nice;
1059		1601
1060	void	1602	void
1061	flush ()	1603	flush ()
1062	PROTOTYPE:
1063	CODE:	1604	CODE:
1064	while (eio_nreqs ())	1605	while (eio_nreqs ())
1065	{	1606	{
1066	poll_wait ();	1607	poll_wait ();
1067	poll_cb ();	1608	poll_cb ();
1068	}	1609	}
1069		1610
1070	int	1611	int
1071	poll()	1612	poll ()
1072	PROTOTYPE:
1073	CODE:	1613	CODE:
1074	poll_wait ();	1614	poll_wait ();
1075	RETVAL = poll_cb ();	1615	RETVAL = poll_cb ();
1076	OUTPUT:	1616	OUTPUT:
1077	RETVAL	1617	RETVAL
1078		1618
1079	int	1619	int
1080	poll_fileno()	1620	poll_fileno ()
1081	PROTOTYPE:
1082	CODE:	1621	CODE:
1083	RETVAL = s_epipe_fd (&respipe);	1622	RETVAL = s_epipe_fd (&respipe);
1084	OUTPUT:	1623	OUTPUT:
1085	RETVAL	1624	RETVAL
1086		1625
1087	int	1626	int
1088	poll_cb(...)	1627	poll_cb (...)
1089	PROTOTYPE:	1628	PROTOTYPE:
1090	CODE:	1629	CODE:
1091	RETVAL = poll_cb ();	1630	RETVAL = poll_cb ();
1092	OUTPUT:	1631	OUTPUT:
1093	RETVAL	1632	RETVAL
1094		1633
1095	void	1634	void
1096	poll_wait()	1635	poll_wait ()
1097	PROTOTYPE:
1098	CODE:	1636	CODE:
1099	poll_wait ();	1637	poll_wait ();
1100		1638
1101	int	1639	int
1102	nreqs()	1640	nreqs ()
1103	PROTOTYPE:
1104	CODE:	1641	CODE:
1105	RETVAL = eio_nreqs ();	1642	RETVAL = eio_nreqs ();
1106	OUTPUT:	1643	OUTPUT:
1107	RETVAL	1644	RETVAL
1108		1645
1109	int	1646	int
1110	nready()	1647	nready ()
1111	PROTOTYPE:
1112	CODE:	1648	CODE:
1113	RETVAL = eio_nready ();	1649	RETVAL = eio_nready ();
1114	OUTPUT:	1650	OUTPUT:
1115	RETVAL	1651	RETVAL
1116		1652
1117	int	1653	int
1118	npending()	1654	npending ()
1119	PROTOTYPE:
1120	CODE:	1655	CODE:
1121	RETVAL = eio_npending ();	1656	RETVAL = eio_npending ();
1122	OUTPUT:	1657	OUTPUT:
1123	RETVAL	1658	RETVAL
1124		1659
1125	int	1660	int
1126	nthreads()	1661	nthreads ()
1127	PROTOTYPE:
1128	CODE:	1662	CODE:
1129	RETVAL = eio_nthreads ();	1663	RETVAL = eio_nthreads ();
1130	OUTPUT:	1664	OUTPUT:
1131	RETVAL	1665	RETVAL
1132		1666
1133	int	1667	int
1134	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1668	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1135	PROTOTYPE: $$$$
1136	CODE:	1669	CODE:
1137	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1138	RETVAL = posix_fadvise (fh, offset, length, advice);	1670	RETVAL = posix_fadvise (fh, offset, length, advice);
1139	#else
1140	RETVAL = errno = ENOSYS;
1141	#endif
1142	OUTPUT:	1671	OUTPUT:
1143	RETVAL	1672	RETVAL
1144		1673
1145	ssize_t	1674	IV
1146	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1675	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1147	PROTOTYPE: $$$$
1148	CODE:	1676	CODE:
1149	eio_sendfile_sync (ofh, ifh, offset, count);	1677	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1678	OUTPUT:
		1679	RETVAL
		1680
		1681	void
		1682	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1683	PPCODE:
		1684	sv_unmagic (scalar, MMAP_MAGIC);
		1685	{
		1686	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1687	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1688	if (addr == (void *)-1)
		1689	XSRETURN_NO;
		1690
		1691	sv_force_normal (scalar);
		1692
		1693	/* we store the length in mg_obj, as namlen is I32 :/ */
		1694	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1695	->mg_obj = (SV *)length;
		1696
		1697	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1698
		1699	if (!(prot & PROT_WRITE))
		1700	SvREADONLY_on (scalar);
		1701
		1702	if (SvLEN (scalar))
		1703	Safefree (SvPVX (scalar));
		1704
		1705	SvPVX (scalar) = (char *)addr;
		1706	SvCUR_set (scalar, length);
		1707	SvLEN_set (scalar, 0);
		1708	SvPOK_only (scalar);
		1709
		1710	XSRETURN_YES;
		1711	}
		1712
		1713	void
		1714	munmap (SV *scalar)
		1715	CODE:
		1716	sv_unmagic (scalar, MMAP_MAGIC);
		1717
		1718	int
		1719	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1720	ALIAS:
		1721	mprotect = 1
		1722	CODE:
		1723	{
		1724	STRLEN svlen;
		1725	void *addr = SvPVbyte (scalar, svlen);
		1726	size_t len = SvUV (length);
		1727
		1728	if (offset < 0)
		1729	offset += svlen;
		1730
		1731	if (offset < 0 || offset > svlen)
		1732	croak ("offset outside of scalar");
		1733
		1734	if (!SvOK (length) || len + offset > svlen)
		1735	len = svlen - offset;
		1736
		1737	addr = (void *)(((intptr_t)addr) + offset);
		1738	eio_page_align (&addr, &len);
		1739
		1740	switch (ix)
		1741	{
		1742	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1743	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1744	}
		1745	}
		1746	OUTPUT:
		1747	RETVAL
		1748
		1749	int
		1750	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1751	CODE:
		1752	{
		1753	STRLEN svlen;
		1754	void *addr = SvPVbyte (scalar, svlen);
		1755	size_t len = SvUV (length);
		1756
		1757	if (offset < 0)
		1758	offset += svlen;
		1759
		1760	if (offset < 0 || offset > svlen)
		1761	croak ("offset outside of scalar");
		1762
		1763	if (!SvOK (length) || len + offset > svlen)
		1764	len = svlen - offset;
		1765
		1766	addr = (void *)(((intptr_t)addr) + offset);
		1767	eio_page_align (&addr, &len);
		1768	#if _POSIX_MEMLOCK_RANGE
		1769	RETVAL = munlock (addr, len);
		1770	#else
		1771	RETVAL = ((errno = ENOSYS), -1);
		1772	#endif
		1773	}
		1774	OUTPUT:
		1775	RETVAL
		1776
		1777	int
		1778	munlockall ()
		1779	CODE:
		1780	#if _POSIX_MEMLOCK
		1781	munlockall ();
		1782	#else
		1783	RETVAL = -1;
		1784	errno = ENOSYS;
		1785	#endif
		1786	OUTPUT:
		1787	RETVAL
1150		1788
1151	void _on_next_submit (SV *cb)	1789	void _on_next_submit (SV *cb)
1152	CODE:	1790	CODE:
1153	SvREFCNT_dec (on_next_submit);	1791	SvREFCNT_dec (on_next_submit);
1154	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1792	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1155		1793
1156	PROTOTYPES: DISABLE	1794	PROTOTYPES: DISABLE
1157		1795
		1796	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1797
		1798	BOOT:
		1799	{
		1800	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1801	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1802	}
		1803
		1804	void
		1805	DESTROY (SV *self)
		1806	CODE:
		1807	{
		1808	aio_wd wd = SvAIO_WD (self);
		1809	#if HAVE_AT
		1810	{
		1811	SV *callback = &PL_sv_undef;
		1812	dREQ; /* clobbers next_pri :/ */
		1813	next_pri = req->pri; /* restore next_pri */
		1814	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1815	req->type = EIO_WD_CLOSE;
		1816	req->wd = wd;
		1817	REQ_SEND;
		1818	}
		1819	#else
		1820	eio_wd_close_sync (wd);
		1821	#endif
		1822	}
		1823
1158	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1824	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1159		1825
1160	void	1826	void
1161	cancel (aio_req_ornot req)	1827	cancel (aio_req_ornot req)
1162	CODE:	1828	CODE:

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